fix(ipc): support querying against duplicate bar names

It is possible/valid to define multiple bars by the same name by setting `name` on the top-level bar object, but not specifying monitors. This updates IPC to support this scenario.

Allow IPC to act on multiple bars by the same name (#777)

src/cli.rs

@@ -46,6 +46,7 @@ pub fn handle_response(response: Response, format: Format) {
         Format::Plain => match response {
             Response::Ok => println!("ok"),
             Response::OkValue { value } => println!("{value}"),
+            Response::Multi { values } => println!("{}", values.join("\n")),
             Response::Err { message } => eprintln!("error\n{}", message.unwrap_or_default()),
         },
         Format::Json => println!(